Obs cop
You have a point but have you seen these new microlights coming out such as the C42 et al. They are more high tech than SEP stuff! Don't dismiss them totally.
Not wishing to discuss your medical background but my eyesight on the old system prevented me having a Class 1 so I had the old class 2 to instruct on. When JAR came in I was promised a class 1 restricted. I still have such a thing. Mine has a NJC (non jar compliant) thing on it. So I can't get a foreign ex uk ATPL etc. Have you gone down this avenue to see if you can get a restricted Class 1.
Its also worth becoming a microlight instructor then build the hours to go back to the CAA and say hey nothing damage in "x" hours now so lighten up boys and give me that Class1. It worked for me. Now I can fly professionally and instruct for fun and get paid for both.
Were there is a will, there is a way!